{"schema":"hottub-news/story/v1","story":"st_gl7mrq3wnooucu4476wq","title":"英伟达 RTX 5070 Ti 显存狂超 +5500MHz：带宽突破 1248 GB/s，游戏实测仅提升 5 帧","title_en":"Nvidia RTX 5070 Ti memory overclocked +5500MHz: bandwidth exceeds 1248 GB/s, game test only improves by 5 frames.","outlets":1,"brief":null,"page":"https://hottub.news/stories/nvidia-rtx-5070-ti-memory-overclocked-5500mhz-bandwidth-exceeds-1248-gb-gl7mrq3wno","count":1,"items":[{"id":"n_gl7mrq3wnooucu4476wq","seq":1605639,"kind":"article","title":"英伟达 RTX 5070 Ti 显存狂超 +5500MHz：带宽突破 1248 GB/s，游戏实测仅提升 5 帧","title_en":"Nvidia RTX 5070 Ti memory overclocked +5500MHz: bandwidth exceeds 1248 GB/s, game test only improves by 5 frames.","url":"https://www.ithome.com/1/009/611.htm","summary":"IT之家 10 月 4 日消息，据 Wccftech，Reddit 用户 u/Sad-Victory-8319 使用第三方工具 mVolt+ Extreme，将一块技嘉 GeForce RTX 5070 Ti 的 GDDR7 显存频率偏移量设为 +5500MHz，使显存等速率从默认的 28 Gbps 提升至 39 Gbps。 该卡配备 16GB GDDR7 三星显存和 256 bit 位宽，理论带宽由此从 896 GB/s 跃升至 1248 GB/s，提升约 39%，比 RTX 4090 的默认带宽高出超过 200 GB/s。 不过，在实际游戏性能方面，提升幅度远小于带宽数字的幅度。该用户报告称，在开启路径追踪的《赛博朋克 2077》中，每 +1000MHz 的显存偏移量大约带来 1 FPS 的提升，因此 +5500MHz 对应的帧率增益约为 5 FPS 左右。 据 OC3D 分析，RTX 5070 Ti 本身并非带宽瓶颈型显卡，其默认的 896 GB/s 带宽在多数游戏场景中已能充分供给 GPU 核心，因此额外带宽带来的收益有限。不过该用户在…","published":"2026-10-04T01:35:40Z","seen":"2026-10-04T02:04:15Z","lang":"zh","country":"CN","source":{"id":"kite-ithome-com-f1cdd0","name":"ithome.com","domain":"ithome.com","outlet":{"wikidata":"Q28413779","name":"IThome","type":"website","country":"CN","designations":["website"]}},"via":"kite-ithome-com-f1cdd0","entities":[{"id":"Q182477","name":"Nvidia","type":"org"},{"id":"Q131693077","name":"GeForce RTX 5070 Ti","type":"other"}],"story":"st_gl7mrq3wnooucu4476wq","category":"science-technology","category_p":0.8799999952316284,"sentiment":"neutral","tone":0.10000000149011612,"political":0.009999999776482582}]}